This standard specifies the technical requirements of small water turbine products, the structure and material requirements of main components, the scope of equipment supply, spare parts, technical documents and drawings, basic requirements for inspection and acceptance, packaging, transportation and storage, installation, operation and maintenance . This standard is applicable to mixed-flow, axial-flow, diagonal-flow, tubular-flow and impact turbines with unit power between 500kW and 10000kW and runner diameter less than 3.3m. Turbines with unit power between 100kW and 500kW can refer to this standard. Turbines whose unit power and runner diameter exceed the above conditions shall be implemented in accordance with GB/T 15468.
GB/T 21718-2008 Referenced Document
DL/T 507 Start-up test code for Hydro-generating units*, 2014-03-18 Update